ToolsOptionsCalculation tab, Check Automatic

If this is not the solution, post again in this thread, but with more
details, please: Formula, addresses, values, results, etc

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Kind regards,

Niek Otten

Microsoft MVP - Excel

"Number one Giraffe" <Number one wrote in
message ...
We are using a spreadsheet that has been functioning correctly for several
months, suddenly the cell containing the formula ceased to function.

Has anyone experienced this and is there a remedy??

Thank you.